Mining Incidents

HENNIKER PIT & MILL PORTABLE CRU: 25 MSHA citations Metal/Non-Metal

Controlled by Thomas Patenaude
New Boston, Merrimack County, NH  ·  Intermittent
MSHA Mine ID: 2700326

HENNIKER PIT & MILL PORTABLE CRU has $3K in proposed MSHA penalties and $0 outstanding across 2 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2010
Latest incident
Jul 2010
Compliance record
MSHA citations since 2000
25
citations
4
significant & substantial
$2,789
proposed penalties
$2,789
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
34
inspections on record
307
inspection hours
n/a
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 307 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

HENNIKER PIT & MILL PORTABLE CRU has $3K in proposed MSHA penalties and $0 outstanding across 2 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
25 assessments are final orders; 2 contested dockets.
Of $210 in penalties contested before the Commission, $110 was upheld in final decisions.
As of the most recent assessment on 2024-04-30.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
16.0%
significant & substantial
4.0%
high negligence or reckless
16.0%
reasonably likely or greater
52.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 24.0% low, 72.0% moderate, 4.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
1 citations taken to the federal commission · 4% of citations on record
  • Vacated or withdrawn 1 · 100%
100%
Penalty reduction in decided contests
$100 proposed, $0 after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2014-08-14.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
YORK 2003-85-M Settlement Lesnick 2004 $110 → $110
YORK 2014-0184 Withdrawal Lesnick 2015 $100 → $0
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2022-08-10, 4 years ago
33%
of limit-tested samples over the exposure limit
7
samples
3
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz31 over
  • Respirable dust, <.1mg4
Show the individual readings (7)
Date Contaminant Concentration Limit Conc / limit Occupation
2005-04-21 Quartz, respirable, >1% Qtz 0.4 0.4 1.00 Crusher Oper/Worker
2022-08-10 Quartz, respirable, >1% Qtz 0.24 0.52 0.46 Front-end Loader Operator
2022-08-10 Quartz, respirable, >1% Qtz 0.13 0.43 0.30 Front-end Loader Operator
2009-05-05 Respirable dust, <.1mg 0 Crusher Oper/Worker
2009-05-05 Respirable dust, <.1mg 0 Front-end Loader Operator
2005-04-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2005-04-21 Respirable dust, <.1mg 0 Front-end Loader Operator
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Ownership history
  1. Henniker Sand & Gravel Company Inc 1997 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 2
2024 1
2023 2
2022 1
2021 2
2020 2
2019 2
2018 2
2017 2
2016 2
2015 1
2014 2
2013 1
2012 1
2011 2
2010 2
2009 1
2008 1
2007 1
2006 2
2005 2
2004 526
2003 3
2002 3
2001 2
2000 2
Source: MSHA quarterly employment and production, updated weekly.

HENNIKER PIT & MILL PORTABLE CRU sits in Merrimack County, New Hampshire, where the Census mining category is 0.1% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Merrimack County, New Hampshire · Population 155,018
0.1%
Mining share of county employment
$93,944
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2026 Q2 308 0 0 0.0
2026 Q1 0 0 0
2025 Q4 54 0 0 0.0
2025 Q3 435 0 0 0.0
2025 Q2 374 0 0 0.0
2025 Q1 0 0 0
2024 Q4 0 0 0
2024 Q3 437 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 271 2 0 7380.1
2024 Q1 0 0 0
2023 Q4 141 0 0 0.0
2023 Q3 470 0 0 0.0
2023 Q2 673 0 0 0.0
2023 Q1 0 0 0
2022 Q4 0 0 0
2022 Q3 191 3 1 15706.8
2022 Q2 86 0 0 0.0
2022 Q1 0 0 0
2021 Q4 244 0 0 0.0
2021 Q3 506 0 0 0.0
2021 Q2 145 0 0 0.0
2021 Q1 0 0 0
2020 Q4 104 0 0 0.0
2020 Q3 133 0 0 0.0
2020 Q2 222 0 0 0.0
2020 Q1 0 0 0
2019 Q4 413 0 0 0.0
2019 Q3 787 1 0 1270.6
2019 Q2 128 0 0 0.0
2019 Q1 0 0 0
2018 Q4 78 0 0 0.0
2018 Q3 385 0 0 0.0
2018 Q2 277 1 0 3610.1
2018 Q1 0 0 0
2017 Q4 254 0 0 0.0
2017 Q3 356 0 0 0.0
2017 Q2 470 0 0 0.0
2017 Q1 0 0 0
2016 Q4 56 0 0 0.0
2016 Q3 383 0 0 0.0
2016 Q2 344 0 0 0.0
2016 Q1 0 0 0
2015 Q4 0 0 0
2015 Q3 274 0 0 0.0
2015 Q2 382 0 0 0.0
2015 Q1 0 0 0
2014 Q4 183 0 0 0.0
2014 Q3 94 0 0 0.0
2014 Q2 244 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 1 0 0 0.0
2013 Q3 0 0 0
2013 Q2 353 1 0 2832.9
2013 Q1 0 0 0
2012 Q4 0 0 0
2012 Q3 0 0 0
2012 Q2 391 2 1 5115.1
2012 Q1 225 0 0 0.0
2011 Q4 156 0 0 0.0
2011 Q3 130 0 0 0.0
2011 Q2 74 0 0 0.0
2011 Q1 0 0 0
2010 Q4 170 0 0 0.0
2010 Q3 326 0 0 0.0
2010 Q2 381 0 0 0.0
2010 Q1 0 0 0
2009 Q4 0 0 0
2009 Q3 1,073 0 0 0.0
2009 Q2 850 1 0 1176.5
2009 Q1 0 0 0
2008 Q4 0 0 0
2008 Q3 1,094 3 1 2742.2
2008 Q2 1,077 0 0 0.0
2008 Q1 0 0 0
2007 Q4 0 0 0
2007 Q3 0 0 0
2007 Q2 1,163 0 0 0.0
2007 Q1 0 0 0
2006 Q4 1,096 0 0 0.0
2006 Q3 1,247 1 0 801.9
2006 Q2 996 0 0 0.0
2006 Q1 0 0 0
2005 Q4 0 0 0
2005 Q3 0 0 0
2005 Q2 1,972 4 0 2028.4
2005 Q1 1,331 0 0 0.0
2004 Q4 4 0 0 0.0
2004 Q3 2,107 0 0 0.0
2004 Q2 1,967 0 0 0.0
2004 Q1 1,238 0 0 0.0
2003 Q4 873 0 0 0.0
2003 Q3 1,974 0 0 0.0
2003 Q2 2,172 0 0 0.0
2003 Q1 1,018 2 0 1964.6
2002 Q4 1,269 0 0 0.0
2002 Q3 2,449 0 0 0.0
2002 Q2 2,194 0 0 0.0
2002 Q1 1,995 1 1 501.3
2001 Q4 1,950 1 0 512.8
2001 Q3 2,080 0 0 0.0
2001 Q2 2,057 0 0 0.0
2001 Q1 0 0 0
2000 Q4 2,020 0 0 0.0
2000 Q3 2,179 0 0 0.0
2000 Q2 1,834 2 0 1090.5
2000 Q1 0 0 0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2010 · 1 incident

July 22, 2010 NH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Henniker Sand & Gravel Company Inc · Fall onto or against objects

Standing on top of utility body of one ton truck with muddy boots. Tried to jump up but slipped and fell into bed of truck. Fell onto unknown object and punctured lower left back. Object left 1/4 inch hole two inches deep. The object hit and chipped left pelvis and caused some swelling.